[thirdparty/xfsprogs-dev.git] / libxfs / xfs_trans_space.h

/*
 * Copyright (c) 2000,2005 Silicon Graphics, Inc.
 * All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it would be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write the Free Software Foundation,
 * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
#ifndef __XFS_TRANS_SPACE_H__
#define __XFS_TRANS_SPACE_H__

/*
 * Components of space reservations.
 */

/* Worst case number of rmaps that can be held in a block. */
#define XFS_MAX_CONTIG_RMAPS_PER_BLOCK(mp)    \
		(((mp)->m_rmap_mxr[0]) - ((mp)->m_rmap_mnr[0]))

/* Adding one rmap could split every level up to the top of the tree. */
#define XFS_RMAPADD_SPACE_RES(mp) ((mp)->m_rmap_maxlevels)

/* Blocks we might need to add "b" rmaps to a tree. */
#define XFS_NRMAPADD_SPACE_RES(mp, b)\
	(((b + XFS_MAX_CONTIG_RMAPS_PER_BLOCK(mp) - 1) / \
	  XFS_MAX_CONTIG_RMAPS_PER_BLOCK(mp)) * \
	  XFS_RMAPADD_SPACE_RES(mp))

#define XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp)    \
		(((mp)->m_alloc_mxr[0]) - ((mp)->m_alloc_mnr[0]))
#define	XFS_EXTENTADD_SPACE_RES(mp,w)	(XFS_BM_MAXLEVELS(mp,w) - 1)
#define XFS_NEXTENTADD_SPACE_RES(mp,b,w)\
	(((b + XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp) - 1) / \
	  XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp)) * \
	  XFS_EXTENTADD_SPACE_RES(mp,w))

/* Blocks we might need to add "b" mappings & rmappings to a file. */
#define XFS_SWAP_RMAP_SPACE_RES(mp,b,w)\
	(XFS_NEXTENTADD_SPACE_RES((mp), (b), (w)) + \
	 XFS_NRMAPADD_SPACE_RES((mp), (b)))

#define	XFS_DAENTER_1B(mp,w)	\
	((w) == XFS_DATA_FORK ? (mp)->m_dir_geo->fsbcount : 1)
#define	XFS_DAENTER_DBS(mp,w)	\
	(XFS_DA_NODE_MAXDEPTH + (((w) == XFS_DATA_FORK) ? 2 : 0))
#define	XFS_DAENTER_BLOCKS(mp,w)	\
	(XFS_DAENTER_1B(mp,w) * XFS_DAENTER_DBS(mp,w))
#define	XFS_DAENTER_BMAP1B(mp,w)	\
	XFS_NEXTENTADD_SPACE_RES(mp, XFS_DAENTER_1B(mp, w), w)
#define	XFS_DAENTER_BMAPS(mp,w)		\
	(XFS_DAENTER_DBS(mp,w) * XFS_DAENTER_BMAP1B(mp,w))
#define	XFS_DAENTER_SPACE_RES(mp,w)	\
	(XFS_DAENTER_BLOCKS(mp,w) + XFS_DAENTER_BMAPS(mp,w))
#define	XFS_DAREMOVE_SPACE_RES(mp,w)	XFS_DAENTER_BMAPS(mp,w)
#define	XFS_DIRENTER_MAX_SPLIT(mp,nl)	1
#define	XFS_DIRENTER_SPACE_RES(mp,nl)	\
	(XFS_DAENTER_SPACE_RES(mp, XFS_DATA_FORK) * \
	 XFS_DIRENTER_MAX_SPLIT(mp,nl))
#define	XFS_DIRREMOVE_SPACE_RES(mp)	\
	XFS_DAREMOVE_SPACE_RES(mp, XFS_DATA_FORK)
#define	XFS_IALLOC_SPACE_RES(mp)	\
	((mp)->m_ialloc_blks + \
	 (xfs_sb_version_hasfinobt(&mp->m_sb) ? 2 : 1 * \
	  ((mp)->m_in_maxlevels - 1)))

/*
 * Space reservation values for various transactions.
 */
#define	XFS_ADDAFORK_SPACE_RES(mp)	\
	((mp)->m_dir_geo->fsbcount + XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK))
#define	XFS_ATTRRM_SPACE_RES(mp)	\
	XFS_DAREMOVE_SPACE_RES(mp, XFS_ATTR_FORK)
/* This macro is not used - see inline code in xfs_attr_set */
#define	XFS_ATTRSET_SPACE_RES(mp, v)	\
	(XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK) + XFS_B_TO_FSB(mp, v))
#define	XFS_CREATE_SPACE_RES(mp,nl)	\
	(XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl))
#define	XFS_DIOSTRAT_SPACE_RES(mp, v)	\
	(XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK) + (v))
#define	XFS_GROWFS_SPACE_RES(mp)	\
	(2 * (mp)->m_ag_maxlevels)
#define	XFS_GROWFSRT_SPACE_RES(mp,b)	\
	((b) + XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK))
#define	XFS_LINK_SPACE_RES(mp,nl)	\
	XFS_DIRENTER_SPACE_RES(mp,nl)
#define	XFS_MKDIR_SPACE_RES(mp,nl)	\
	(XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl))
#define	XFS_QM_DQALLOC_SPACE_RES(mp)	\
	(XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK) + \
	 XFS_DQUOT_CLUSTER_SIZE_FSB)
#define	XFS_QM_QINOCREATE_SPACE_RES(mp)	\
	XFS_IALLOC_SPACE_RES(mp)
#define	XFS_REMOVE_SPACE_RES(mp)	\
	XFS_DIRREMOVE_SPACE_RES(mp)
#define	XFS_RENAME_SPACE_RES(mp,nl)	\
	(XFS_DIRREMOVE_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl))
#define	XFS_SYMLINK_SPACE_RES(mp,nl,b)	\
	(XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl) + (b))
#define XFS_IFREE_SPACE_RES(mp)		\
	(xfs_sb_version_hasfinobt(&mp->m_sb) ? (mp)->m_in_maxlevels : 0)


#endif	/* __XFS_TRANS_SPACE_H__ */
Commit	Line	Data
2bd0ea18	1	/*
f302e9e4 NS	2	* Copyright (c) 2000,2005 Silicon Graphics, Inc.
f302e9e4 NS	3	* All Rights Reserved.
5000d01d	4	*
f302e9e4 NS	5	* This program is free software; you can redistribute it and/or
f302e9e4 NS	6	* modify it under the terms of the GNU General Public License as
2bd0ea18	7	* published by the Free Software Foundation.
5000d01d	8	*
f302e9e4 NS	9	* This program is distributed in the hope that it would be useful,
	10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	* GNU General Public License for more details.
5000d01d	13	*
f302e9e4 NS	14	* You should have received a copy of the GNU General Public License
	15	* along with this program; if not, write the Free Software Foundation,
	16	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
2bd0ea18 NS	17	*/
	18	#ifndef __XFS_TRANS_SPACE_H__
	19	#define __XFS_TRANS_SPACE_H__
	20
	21	/*
	22	* Components of space reservations.
	23	*/
4726325d DW	24
4726325d DW	25	/* Worst case number of rmaps that can be held in a block. */
09a5b0e2 DW	26	#define XFS_MAX_CONTIG_RMAPS_PER_BLOCK(mp) \
09a5b0e2 DW	27	(((mp)->m_rmap_mxr[0]) - ((mp)->m_rmap_mnr[0]))
4726325d DW	28
	29	/* Adding one rmap could split every level up to the top of the tree. */
	30	#define XFS_RMAPADD_SPACE_RES(mp) ((mp)->m_rmap_maxlevels)
	31
	32	/* Blocks we might need to add "b" rmaps to a tree. */
	33	#define XFS_NRMAPADD_SPACE_RES(mp, b)\
	34	(((b + XFS_MAX_CONTIG_RMAPS_PER_BLOCK(mp) - 1) / \
	35	XFS_MAX_CONTIG_RMAPS_PER_BLOCK(mp)) * \
	36	XFS_RMAPADD_SPACE_RES(mp))
	37
dfc130f3	38	#define XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp) \
5000d01d	39	(((mp)->m_alloc_mxr[0]) - ((mp)->m_alloc_mnr[0]))
dfc130f3	40	#define XFS_EXTENTADD_SPACE_RES(mp,w) (XFS_BM_MAXLEVELS(mp,w) - 1)
2bd0ea18	41	#define XFS_NEXTENTADD_SPACE_RES(mp,b,w)\
5000d01d SL	42	(((b + XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp) - 1) / \
	43	XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp)) * \
	44	XFS_EXTENTADD_SPACE_RES(mp,w))
4726325d DW	45
4726325d DW	46	/* Blocks we might need to add "b" mappings & rmappings to a file. */
09a5b0e2	47	#define XFS_SWAP_RMAP_SPACE_RES(mp,b,w)\
4726325d DW	48	(XFS_NEXTENTADD_SPACE_RES((mp), (b), (w)) + \
	49	XFS_NRMAPADD_SPACE_RES((mp), (b)))
	50
ff105f75 DC	51	#define XFS_DAENTER_1B(mp,w) \
ff105f75 DC	52	((w) == XFS_DATA_FORK ? (mp)->m_dir_geo->fsbcount : 1)
dfc130f3	53	#define XFS_DAENTER_DBS(mp,w) \
5e656dbb	54	(XFS_DA_NODE_MAXDEPTH + (((w) == XFS_DATA_FORK) ? 2 : 0))
dfc130f3	55	#define XFS_DAENTER_BLOCKS(mp,w) \
2bd0ea18	56	(XFS_DAENTER_1B(mp,w) * XFS_DAENTER_DBS(mp,w))
dfc130f3	57	#define XFS_DAENTER_BMAP1B(mp,w) \
2bd0ea18	58	XFS_NEXTENTADD_SPACE_RES(mp, XFS_DAENTER_1B(mp, w), w)
dfc130f3	59	#define XFS_DAENTER_BMAPS(mp,w) \
2bd0ea18	60	(XFS_DAENTER_DBS(mp,w) * XFS_DAENTER_BMAP1B(mp,w))
dfc130f3	61	#define XFS_DAENTER_SPACE_RES(mp,w) \
2bd0ea18	62	(XFS_DAENTER_BLOCKS(mp,w) + XFS_DAENTER_BMAPS(mp,w))
dfc130f3	63	#define XFS_DAREMOVE_SPACE_RES(mp,w) XFS_DAENTER_BMAPS(mp,w)
5e656dbb	64	#define XFS_DIRENTER_MAX_SPLIT(mp,nl) 1
dfc130f3	65	#define XFS_DIRENTER_SPACE_RES(mp,nl) \
2bd0ea18 NS	66	(XFS_DAENTER_SPACE_RES(mp, XFS_DATA_FORK) * \
2bd0ea18 NS	67	XFS_DIRENTER_MAX_SPLIT(mp,nl))
dfc130f3	68	#define XFS_DIRREMOVE_SPACE_RES(mp) \
2bd0ea18	69	XFS_DAREMOVE_SPACE_RES(mp, XFS_DATA_FORK)
dfc130f3	70	#define XFS_IALLOC_SPACE_RES(mp) \
ff105f75	71	((mp)->m_ialloc_blks + \
0f88d64a BF	72	(xfs_sb_version_hasfinobt(&mp->m_sb) ? 2 : 1 * \
0f88d64a BF	73	((mp)->m_in_maxlevels - 1)))
2bd0ea18 NS	74
	75	/*
	76	* Space reservation values for various transactions.
	77	*/
dfc130f3	78	#define XFS_ADDAFORK_SPACE_RES(mp) \
ff105f75	79	((mp)->m_dir_geo->fsbcount + XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK))
dfc130f3	80	#define XFS_ATTRRM_SPACE_RES(mp) \
2bd0ea18 NS	81	XFS_DAREMOVE_SPACE_RES(mp, XFS_ATTR_FORK)
2bd0ea18 NS	82	/* This macro is not used - see inline code in xfs_attr_set */
dfc130f3	83	#define XFS_ATTRSET_SPACE_RES(mp, v) \
2bd0ea18	84	(XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK) + XFS_B_TO_FSB(mp, v))
dfc130f3	85	#define XFS_CREATE_SPACE_RES(mp,nl) \
2bd0ea18	86	(XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl))
dfc130f3	87	#define XFS_DIOSTRAT_SPACE_RES(mp, v) \
2bd0ea18	88	(XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK) + (v))
dfc130f3	89	#define XFS_GROWFS_SPACE_RES(mp) \
de046644	90	(2 * (mp)->m_ag_maxlevels)
dfc130f3	91	#define XFS_GROWFSRT_SPACE_RES(mp,b) \
2bd0ea18	92	((b) + XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK))
dfc130f3	93	#define XFS_LINK_SPACE_RES(mp,nl) \
2bd0ea18	94	XFS_DIRENTER_SPACE_RES(mp,nl)
dfc130f3	95	#define XFS_MKDIR_SPACE_RES(mp,nl) \
2bd0ea18	96	(XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl))
dfc130f3	97	#define XFS_QM_DQALLOC_SPACE_RES(mp) \
2bd0ea18 NS	98	(XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK) + \
2bd0ea18 NS	99	XFS_DQUOT_CLUSTER_SIZE_FSB)
dfc130f3	100	#define XFS_QM_QINOCREATE_SPACE_RES(mp) \
2bd0ea18	101	XFS_IALLOC_SPACE_RES(mp)
dfc130f3	102	#define XFS_REMOVE_SPACE_RES(mp) \
2bd0ea18	103	XFS_DIRREMOVE_SPACE_RES(mp)
dfc130f3	104	#define XFS_RENAME_SPACE_RES(mp,nl) \
2bd0ea18	105	(XFS_DIRREMOVE_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl))
dfc130f3	106	#define XFS_SYMLINK_SPACE_RES(mp,nl,b) \
2bd0ea18	107	(XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl) + (b))
0f88d64a BF	108	#define XFS_IFREE_SPACE_RES(mp) \
	109	(xfs_sb_version_hasfinobt(&mp->m_sb) ? (mp)->m_in_maxlevels : 0)
	110
2bd0ea18 NS	111
2bd0ea18 NS	112	#endif /* __XFS_TRANS_SPACE_H__ */